Heroic Teacher summary: Gu Xuanchen, a former king, once trained ten exceptional disciples who mastered the emperor-realm level and ruled the world. However, he tragically failed to break free from his limitations and was struck by fatal thunder. Yet, reborn as a son-in-law, he embarks on a journey to regain his peak status by defeating demons, monsters, and other dark entities. On this path, he saves both his clan and his disciples. Witness the inspiring rise of this mighty ruler as he leaves a lasting mark on the world.